'Baptised' in the Bible

He said therefore to the crowds which went out to be baptised by him, Offspring of vipers, who has forewarned you to flee from the coming wrath?

And tax-gatherers came also to be baptised, and they said to him, Teacher, what should we do?

And it came to pass, all the people having been baptised, and Jesus having been baptised and praying, that the heaven was opened,

(And all the people who heard it, and the tax-gatherers, justified God, having been baptised with the baptism of John;

but the Pharisees and the lawyers rendered null as to themselves the counsel of God, not having been baptised by him.)

But I have a baptism to be baptised with, and how am I straitened until it shall have been accomplished!